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Finding the Fourth Proportional to 29,991.41, 44,993.45 and 11,271.61

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Solution

The fourth proportional to 29,991.41, 44,993.45 and 11,271.61 is: 16,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,991.41 : 44,993.45 = 11,271.61 : x
  2. Step 2: Convert to fraction form
    29,991.41/44,993.45 = 11,271.61/x
  3. Step 3: Cross multiply
    29,991.41x = 44,993.45 × 11,271.61
  4. Step 4: Simplify right side
    29,991.41x = 507,148,620.95
  5. Step 5: Solve for x
    x = 507,148,620.95/29,991.41
  6. Step 6: Final answer
    x = 16,909.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.